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AISI 420F Stainless Steel vs. Grade 36 Titanium

AISI 420F stainless steel belongs to the iron alloys classification, while grade 36 titanium belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AISI 420F stainless steel and the bottom bar is grade 36 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 18
11
Fatigue Strength, MPa 270
300
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 76
39
Shear Strength, MPa 460
320
Tensile Strength: Ultimate (UTS), MPa 740
530
Tensile Strength: Yield (Proof), MPa 430
520

Thermal Properties

Latent Heat of Fusion, J/g 270
370
Maximum Temperature: Mechanical, °C 760
320
Melting Completion (Liquidus), °C 1440
2020
Melting Onset (Solidus), °C 1390
1950
Specific Heat Capacity, J/kg-K 480
420
Thermal Expansion, µm/m-K 10
8.1

Otherwise Unclassified Properties

Density, g/cm3 7.7
6.3
Embodied Carbon, kg CO2/kg material 2.0
58
Embodied Energy, MJ/kg 28
920
Embodied Water, L/kg 100
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
59
Resilience: Unit (Modulus of Resilience), kJ/m3 480
1260
Stiffness to Weight: Axial, points 14
9.3
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
23
Strength to Weight: Bending, points 23
23
Thermal Shock Resistance, points 27
45

Alloy Composition

Carbon (C), % 0.3 to 0.4
0 to 0.030
Chromium (Cr), % 12 to 14
0
Hydrogen (H), % 0
0 to 0.0035
Iron (Fe), % 82.4 to 87.6
0 to 0.030
Manganese (Mn), % 0 to 1.3
0
Molybdenum (Mo), % 0 to 0.5
0
Niobium (Nb), % 0
42 to 47
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.16
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0.15 to 0.35
0
Titanium (Ti), % 0
52.3 to 58
Residuals, % 0
0 to 0.4